Newton’s Second law
The rate of change of momentum of an object is directly proportional to the force exerted on it and the momentum change is in the direction of the force applied
or
The force exerted on an object is equal to the product of the mass of the object and the force generated in the direction of the force. F = ma
Examples -
It is easier to catch a tennis ball than a cricket ball and tennis ball coming at the same velocity. A heavy hammer is used by a crotchet player to break the slab of the bricks with a hand stroke.
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